RENO — Proof of Nevada’s importance in the outcome of the horse race that is the presidential election continued to be on display Thursday, with President Obama visiting Las Vegas and GOP vice presidential candidate Paul Ryan making stops in Reno and in Southern Nevada.With only days before the Tuesday general election, both campaigns continued to reach out to undecided voters in battleground states including Nevada and Colorado.Ryan, speaking to a Reno-Sparks Convention Center crowd estimated by local law enforcement at about 600, continued to push the Romney-Ryan message calling for change, pointing to what he termed Obama’s failed efforts …